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MediaWiki

Free wiki software in PHP, used by Wikipedia and built to scale from small sites to large ones

Open Source Alternative to
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  • PHP
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About MediaWiki

MediaWiki is free and open source wiki software written in PHP. It is the collaboration and documentation platform that runs Wikipedia and the other Wikimedia projects, used by hundreds of millions of people each month to collect and organize knowledge.

Pages are written in wikitext and organized with namespaces, categories, and reusable templates. Editing is collaborative, with full revision history behind every page, plus search and a programmatic API for accessing content.

The software is extensible both on-wiki and through hundreds of extensions, and it is localized in over 350 languages. It scales from small private wikis to sites the size of Wikipedia, and is developed through global collaboration under the Wikimedia Foundation.

Key features

  • Wikitext editing with full revision history
  • Collaborative editing for many contributors
  • Namespaces, categories, and reusable templates
  • Extensible on-wiki and with hundreds of extensions
  • Built-in search and a programmatic API

Details

Governance
Wikimedia Foundation
Powers
Wikipedia · Wikimedia projects
Deployment
self-hostable
Built with
PHP
License
GNU GPL v2 or later
Localization
Over 350 languages